06-12-2012, 03:55 AM
![[Image: 7178915485_27d8cf07ec.jpg]](http://farm8.staticflickr.com/7231/7178915485_27d8cf07ec.jpg)
This round cycled into the chamber and I ejected it into my hand after hunting. Are these dings and markings normal? If not, I'm thinking one of two things:
1) My barrel has M4 cuts but my receiver does not.
2) My gas block is open too much. I am running an 18" midlength.
Thanks1
